Toothbrush head and handle unit



FIG. 1 is a top plan view of a toothbrush head and handle unit showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a top perspective view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an enlarged front end elevational view thereof; and,

FIG. 6 is a rear end elevational view thereof. 

The ornamental design for a toothbrush head and handle unit, as shown and described. 